-6(-2.25)-3y=21

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Solution for -6(-2.25)-3y=21 equation: 



-6(-2.25)-3y=21

We move all terms to the left:

-6(-2.25)-3y-(21)=0

determiningTheFunctionDomain
-3y-21-6(-2.25)=0

We add all the numbers together, and all the variables

-3y-7.5=0

We move all terms containing y to the left, all other terms to the right

-3y=7.5

y=7.5/-3

y=-2+1/2

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